Shaft bearing



Dec. 14 1926. 1 A. LATHAM SHAFT BEARI NG Original Filed Fb. ;l2h

Paiemea nec. 14,1926.

ALBERT LATHA1vi,oE vBEVERLY, MASSACHUSETTS; AssIeNoR To UNITEDsPIoiiiuA-v` i CHINERY CORPORATION,` or PATERsoN, NEW JERSEY, ACORPORATION E NEW JERSEY.

Y Y SHAFT BEARING.

- original appiicaiipn iiiea rebruaryia, iaiafsiiai No. autres. i'Divided aria iiiisi appiicaiipn mear Tebriiary 1*?,A 192e,

The present invention relates to shaft bearings and more particularly tojournal bearings which require'accurate alignment with the axis of theshaft. t Y

The subject inatt-er of the present application is divided out fromaco-pendingapplication of Latham, Serial No. 216,735,1filed February12,1918, now Patent No. 1,342,120, granted June 1,V 1920, and of whichthe present application is a division.' Y

It is the object of the present invention to provide a journal bearingof an improved type which may be exactly aligned withy the rotary shaftand retained in aligned position, Y

With this ltures of the invention consist in certain novel features ofconstruction, combinations The accompanyingyd'rawing illustrates avlongitudinal section in elevation ofthe'improved journal bearingembodied in a machine for skiving leathenf The machine shown in theillustrated embodiment of the invention comprises.gener-f',` allyV atubular` knife Vblade 10V-which is clamped within an externa-l holder1,2 bya.'

` clamping head 14. The holder l2 is mounted upon one end of a hollowknifeshaft 15 which receives a clamping-rodv 16 connected with theclampinghead 14 and a hollow adjusting rod 17 connected withathreadedad;`

justing ring'18. The clamping and adjust? ing rods are provided withactuating mem-:l bers 2O and 21 respectively, located at the oppositeend ofthe machine.' This con-Vf' struction forms nopart of the presentinvention and is fully disclosed inthe patent Y hereinbefore set forth.

y It is cnstomar'yfto rotate the knife shaftv at a high rate of speedand. it isl accordingly advisable that the bearings for sup-` portingthe shaft shall be exactly' aligned therewith in order to insureagainstV the slightest binding l01,' cramping of vthe'shaft within thebearings. To this end, each shaftbearing comprises a journal boxhavingprovision for a universal t swiveling movement with respect to the axisoftheobject lin view, the several fea- SerialkIil'o'. 359,444.

rounded annular bead 28 midway between Y its ends. The annular bead,which is of i Aslightly greater ldiameter than thefjoiirnal box, litsclosely within an opening'() formed in the'frame 31 ofthe machine. Withthis j Y held v against, a 'bodily transverse movement,

construction, as may be observed fromthe drawings, -,the journal box,vasa whole', is'

but owingto vthe reduced diameter, iscac' rpable of a'slight swivelingmovement with respect to thev axis of the shaft which. per-V withtheshaft. Inorderfto firmly retain mits an exact aligning of th'e journalbox j the journal .box in aligned positionl and pre- L 'ventendwisemovement within the opening, 4each annularbead 28 is engaged by aVretai'n- 1 ing member 32 which is threadedly received in an openingVformed in the frame 3l. The

aineter than the total width of theV vbead to Y inner end of theretaining member, or plug 32, is curved to conform to the curvature ofythe bead,l and, as shown, the inner end of thc retainingtinember is'also slightly less in di- I permit the necessary swiveling'movements ffof 'thebox 'It will be obvious to those :skilled in the art Vthat whenthe retainingV member'is loosenedthe journal box will tend' `'to align`exactly Vwith the shaft and that thereafter the tighteningof the,retaining pin 35 secured' in the inner end ofthe fretaining 'member andhaving av reduced neck 86which.; projectsl into a recess l37 form'ed.-

inthe box. `Als the neck 37 is of s'ubstan'- .Y '.tially smaller,'diameter' than the recess,git

does not interfere with the vnecessary swiveling movements. Although itfhas vrbeen stated-above that the retainingmembers 32 may be tightenedso as to' hold the boxes in aligned position, it is'obvious that theextent-y to whi'chthese members are tightened will be governed by the.exigen'cies of the case and that the pressureof the members upon Y theboxes may, if desired, besuch as toV permit the boxes to remain at alltimes selff aligninglV yIn orderv to properlyliibricatefthe rotatingshaft, each box .is provided with lubricating grooves 40 which ares'iipplied`V With lubricant:` from a' hollow duct extending com! pletelythroughv the retaining member vand pin 375. v i the invention, thejournal box V25 Which supportstha't Vend' of the" shaft adjacent theslriving knife is considerably larger than'tllie companionboxWhichsnpports the opposite endof the shaft, biit the provision foralign#ingeacli box` with the' shaft is' identical. The rotary shaftis'retained against longitudinal movement' relative' to? thev bearingsthrough the pri'fisionV of annular'fiange 42' and thrust" collar 2i-2r"di'sposedinponopposite (sides ofthe-*journalboxiQo. rilliefthrustcollaris: keyed-tothe shafti and is'- pre-vented from movinglongitndinally through ya lockV nut 46' threadedit/o" the shaft behindthe collar; As

tliatportion of theshaft received ivithin the journal box 25 isslightly` yt'ap'erechit Will` be evideifitthat the'provision of theoppo'lsitely disposed flange and thrust' collar enables'tli-e" parte`to'be sol adjusted'that all'enpd-play or chattering of the shaft isprevented.-

Since the openings 30'a're made in thesolid;

frame-` of the machine" and the journal boxes 25, 26' are so constructedthat they may be pushed into thes'e'openings With their round:-r

ed ribs 2S closely in said openings, 'ai

highly advantageous' construction results not 'only because' facilitatesthe assembling of the` boxes in' the'fraine of the machineWithout-having to separate the parte of a split cas'iiig,but because theholes or openings can" be madevery readily andi'vith great accuracy.

While itis Apreferred to employ the specific combinationand'arrangeme'nt of parts' shown' andv described, it Will be understoodthat this construction and arraii'geinentyisf not'es'sential except sofar'as specified in the claims, and 'may be changed. or modified Withoutdeparting fromlth-e'broader features of thev invention. I Y

Y The 'nv'ention haviiig been described, What is claimed is: Y Y

31;. A; shaft bearing comprising a journal Y boit having on itsperiphery ar projecting rounded portion, a vsolidoiie'picce supporting'member provided withy ak cylindrical opening the inne'r surface ofWhich'is smooth 'and4 the diameter of' which is such Ithat the whereby'the`j n the illustrated embodiment ofi ment'. I

fandk means vfor retaining each box out of the opening7 and a retainingplug eX- tending through one Wall of the ysolid sup? portingnieinberinto contact-"With'the' rounded portion. Y j Y Y 2. A. shaft bearingcomprising a journal box having a smooth annular bead between'y itsen'dsof slightlyv greater diameter than thev diameter of the box, a solidoiie-pie'c'e"snpV porting member havinga cylindrical opening Withinwhich the annular bead fits closely, afnda retaining' member l adaptedt'o contact W'itlif the ybead and retain the box against sivivelingmovement. A shaft bearing comprising a" solid one? piece supportingii'i'einb-er provided ivithf ai cylindri'c'al opening, and a journal boxhave ing on its periphery a" raised portion the'sur'-V face`- of* ivhichis'? smooth andA rounded; the

box may be insertedEV inthe supporting! mem ber -iv'ith itsroundedportion fitting closely in said opening. Y

Y t. A shaft bearingcomprising asolidl one` piece si'ipporting' memberlprovided with a cylindrical opening', a journal box having' onits'pe'riphery al raised port-ion thel surface of 'which' is smooth androunded', the proporydiameter ofthe box', a supporting member having anopening Within-'Wh'ch the annular bead'fits Closely, a plug threaded Iinthe'sup porting ine'i'nb-er andl having an inner end shaped to engage'With the' bead and retain the box in adjusted' an'gular position, and apin 4extending from the inner end Vthe ping. 'and received in an'onenino- 'formedv in the box to retain the latter against rotary move-6. jinechanisin of the character described ooniprisii'ig ashaft having atapered portion, journa'lll boxes'supporting the shaft atopposite'ends', one' of which is shaped to conform to the' tapered portion of theshaft, ineaiisfor supporting the jonrii'al boxes 'adapted to .pei-.-A

iiiitfaiii 'independent siviveliiig movement of the shaft.

eachfbox withrespect'to the' axis ofY i fvliiox mi duwde position withrespect tothe shaft i @Bear

